Article (Scientific journals)
Identification of a putative quantitative trait nucleotide in guanylate binding protein 5 for host response to PRRS virus infection
Koltes, J. E.; Fritz-Waters, E.; Eisley, C. J. et al.
2015In BMC Genomics, 16 (1)
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Keywords :
Article; GBP5 gene; Porcine reproductive and respiratory syndrome virus; Porcine respiratory and reproductive syndrome virus; Suidae; Sus scrofa
Abstract :
[en] Background: Previously, we identified a major quantitative trait locus (QTL) for host response to Porcine Respiratory and Reproductive Syndrome virus (PRRSV) infection in high linkage disequilibrium (LD) with SNP rs80800372 on Sus scrofa chromosome 4 (SSC4). Results: Within this QTL, guanylate binding protein 5 (GBP5) was differentially expressed (DE) (p < 0.05) in blood from AA versus AB rs80800372 genotyped pigs at 7,11, and 14 days post PRRSV infection. All variants within the GBP5 transcript in LD with rs80800372 exhibited allele specific expression (ASE) in AB individuals (p < 0.0001). A transcript re-assembly revealed three alternatively spliced transcripts for GBP5. An intronic SNP in GBP5, rs340943904, introduces a splice acceptor site that inserts five nucleotides into the transcript. Individuals homozygous for the unfavorable AA genotype predominantly produced this transcript, with a shifted reading frame and early stop codon that truncates the 88 C-terminal amino acids of the protein. RNA-seq analysis confirmed this SNP was associated with differential splicing by QTL genotype (p < 0.0001) and this was validated by quantitative capillary electrophoresis (p < 0.0001). The wild-type transcript was expressed at a higher level in AB versus AA individuals, whereas the five-nucleotide insertion transcript was the dominant form in AA individuals. Splicing and ASE results are consistent with the observed dominant nature of the favorable QTL allele. The rs340943904 SNP was also 100 % concordant with rs80800372 in a validation population that possessed an alternate form of the favorable B QTL haplotype. Conclusions: GBP5 is known to play a role in inflammasome assembly during immune response. However, the role of GBP5 host genetic variation in viral immunity is novel. These findings demonstrate that rs340943904 is a strong candidate causal mutation for the SSC4 QTL that controls variation in host response to PRRSV. © 2015 Koltes et al.
Disciplines :
Genetics & genetic processes
Author, co-author :
Koltes, J. E.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States
Fritz-Waters, E.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States
Eisley, C. J.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States, Department of Statistics, Iowa State University, 1121 Snedecor Hall, Ames, IA, United States
Choi, I.;  USDA-ARS, BARC, APDL, Building 1040, Beltsville, MD, United States
Bao, H.;  Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
Kommadath, A.;  Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
Serão, N. V. L.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States
Boddicker, N. J.;  Genesus Inc, 101 2nd Street, Oakville, MB, Canada
Abrams, S. M.;  USDA-ARS, BARC, APDL, Building 1040, Beltsville, MD, United States
Schroyen, Martine  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Zootechnie
Loyd, H.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States
Tuggle, C. K.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States
Plastow, G. S.;  Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
Guan, L.;  Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
Stothard, P.;  Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
Lunney, J. K.;  USDA-ARS, BARC, APDL, Building 1040, Beltsville, MD, United States
Liu, P.;  Department of Statistics, Iowa State University, 1121 Snedecor Hall, Ames, IA, United States
Carpenter, S.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States
Rowland, R. R. R.;  College of Veterinary Medicine, Kansas State University, K-231 Mosier Hall, Manhattan, KS, United States
Dekkers, J. C. M.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States
Reecy, J. M.;  Department of Animal Science, Iowa State University, 2255 Kildee Hall, Ames, IA, United States
More authors (11 more) Less
Title :
Identification of a putative quantitative trait nucleotide in guanylate binding protein 5 for host response to PRRS virus infection
Publication date :
2015
Journal title :
BMC Genomics
eISSN :
1471-2164
Publisher :
BioMed Central Ltd.
Volume :
16
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
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